Finding the Fourth Proportional to 638,421,472.46, 880,238,908.74 and 524,994,577.05
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Solution
The fourth proportional to 638,421,472.46, 880,238,908.74 and 524,994,577.05 is: 723,848,857.74
Step by Step Solution
- Step 1: Write the proportion equation
638,421,472.46 : 880,238,908.74 = 524,994,577.05 : x - Step 2: Convert to fraction form
638,421,472.46/880,238,908.74 = 524,994,577.05/x - Step 3: Cross multiply
638,421,472.46x = 880,238,908.74 × 524,994,577.05 - Step 4: Simplify right side
638,421,472.46x = 462,120,653,597,232,512 - Step 5: Solve for x
x = 462,120,653,597,232,512/638,421,472.46 - Step 6: Final answer
x = 723,848,857.74
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.